Why inject the politics? Are you saying that all our problems would go away if we just had someone taking away our choices and telling us what to eat? They could plan out food production centrally. In five year plans. And people would would definitely no longer over eat.....
I injected it because there is an explanation for why our food is designed this way and it is economic in nature. I think this is a bad thing, you might think that the system is good, but it's important to point it out and not pretend otherwise.
Actually planned economies often do solve the problem of food over-abundance rather nicely... "Communism is like food -- not everybody gets it".
Funnies aside capitalism without regulation quickly devolves into oligarchy. So throwing few more regulations is fine. You can always buy bags of sugar yourself and eat it with a spoon if you prefer.